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Finding the Fourth Proportional to 67,378.70, 101,068.05 and 64,098.20

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Solution

The fourth proportional to 67,378.70, 101,068.05 and 64,098.20 is: 96,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,378.70 : 101,068.05 = 64,098.20 : x
  2. Step 2: Convert to fraction form
    67,378.70/101,068.05 = 64,098.20/x
  3. Step 3: Cross multiply
    67,378.70x = 101,068.05 × 64,098.20
  4. Step 4: Simplify right side
    67,378.70x = 6,478,280,082.51
  5. Step 5: Solve for x
    x = 6,478,280,082.51/67,378.70
  6. Step 6: Final answer
    x = 96,147.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.